[  521.685506] bond0: (slave eth0): making interface the new active one
[  521.685590] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.835723] bond0: (slave eth0): Releasing backup interface
[  525.914336] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.064555] bond0: (slave eth0): Releasing backup interface
[  530.083447] bond0 (unregistering): Released all slaves